杯鞘石斛化学成分研究

目的：对杯鞘石斛Dendrobium gratiosissimum的化学成分进行研究。方法：采用工业乙醇冷浸提取,硅胶,Sephadex LH-20,ODS反相柱色谱等方法进行分离,根椐理化常数和光谱数据鉴定结构。结果：从杯鞘石斛中共分离得到9个化合物,分别为：3,5,4′-三羟基联苄(1),3,4′-二羟基-5-甲氧基联苄(2),3,4-二羟基-4′,5-二甲氧基联苄(3),芹菜素(4),对羟基苯甲醛(5),对羟基反式肉桂酸三十烷基酯(6),反式阿魏酸二十八烷基酯(7),β-谷甾醇(8)和胡萝卜苷(9)。结论：以上化合物均为首次从该种植物中得到,化合物2,4和5为属内首次分离得到。

Studies on constituents of Dendrobium gratiosissimum

OBJECTIVE: To study the chemical constituents of Dendrobium gratiosissimum. METHOD: The constituents were isolated and purified by silica gel, Sephadex LH-20 colum chromatography, and the structures were identified by physicochemical properties and spectral data. RESULT: Nine compounds were obtained as: 3,5,4'-trihydroxybibenzyl (1), 3,4'-dihydroxy-5-methoxybibenzyl (2), 3,4-dihydroxy-4', 5-dimethoxybibenzyl (3), apigenin (4), p-hydroxybenzaldehyde (5), defuscin (6), n-octacostyl ferulate (7), beta-sitosterol (8) and daucosterol (9). CONCLUSION: All these compounds were obtained from this plant for the first time, and compounds 2, 4 and 5 were isolated firstly from this genus.